模溫(wen)(wen)機又叫模具溫(wen)(wen)度(du)控制(zhi)機,廣(guang)泛應用于塑膠(jiao)成型,導光(guang)板壓(ya)鑄,橡膠(jiao)輪胎(tai)、滾輪,化工(gong)反應釜、粘合、密煉(lian)等(deng)各行各業。從廣(guang)義方面(mian)講(jiang),叫溫(wen)(wen)度(du)控制(zhi)設備(bei),包含加溫(wen)(wen)和冷凍兩個方面(mian)的溫(wen)(wen)度(du)控制(zhi)。
現(xian)在(zai)模溫(wen)(wen)機(ji)(ji)一般分(fen)水(shui)溫(wen)(wen)機(ji)(ji)、油溫(wen)(wen)機(ji)(ji)控制的溫(wen)(wen)度(du)(du)可以達到正(zheng)負0.1度(du)(du)。標準型水(shui)介質模溫(wen)(wen)機(ji)(ji)工作較(jiao)高(gao)溫(wen)(wen)度(du)(du)為120℃,高(gao)溫(wen)(wen)型水(shui)介質模溫(wen)(wen)機(ji)(ji)工作較(jiao)高(gao)180℃。水(shui)式模溫(wen)(wen)機(ji)(ji)由于(yu)比較(jiao)干(gan)凈,常用于(yu)光學鏡片、注塑成型等(deng)行業。
油(you)(you)式(shi)(shi)模溫(wen)(wen)(wen)機又(you)叫(jiao)油(you)(you)溫(wen)(wen)(wen)機或是油(you)(you)加(jia)熱器,油(you)(you)式(shi)(shi)模溫(wen)(wen)(wen)機(油(you)(you)溫(wen)(wen)(wen)機):油(you)(you)式(shi)(shi)模溫(wen)(wen)(wen)機分為(wei)三個等級:標(biao)準型、高溫(wen)(wen)(wen)型、超高溫(wen)(wen)(wen)型,較(jiao)高工作溫(wen)(wen)(wen)度分別(bie)為(wei)180℃,300℃,350℃。
其工作(zuo)原理:模(mo)溫(wen)機管路與模(mo)具油(you)道連接(jie)構成回(hui)路,導(dao)熱(re)油(you)在泵的作(zuo)用(yong)下(xia)進行循環。溫(wen)度(du)傳(chuan)感器將(jiang)數據傳(chuan)送到控制(zhi)系(xi)統,自動(dong)調整加熱(re)/冷(leng)卻動(dong)作(zuo),控制(zhi)導(dao)熱(re)油(you)溫(wen)度(du)。
模溫機(ji)在塑膠行業的運用比較(jiao)普遍,主要作(zuo)用是(shi):
1,提高產品的成型效率;
2,降低不良(liang)品的產生(sheng);
3,提高產(chan)品的(de)外觀,抑(yi)制產(chan)品的(de)缺陷;
4,加快生產(chan)進度,降低能耗,節約能源。
模溫(wen)機在壓鑄(zhu)(zhu)行業的(de)(de)運用也(ye)有很大的(de)(de)空間(jian),特別(bie)是在鎂合金,鋁合金的(de)(de)制造中,不平均或(huo)不適當的(de)(de)模具(ju)溫(wen)度會(hui)導致(zhi)鑄(zhu)(zhu)件尺(chi)寸不穩(wen)定,在生(sheng)(sheng)產(chan)(chan)(chan)(chan)過程中頂出鑄(zhu)(zhu)件變形(xing),產(chan)(chan)(chan)(chan)生(sheng)(sheng)熱壓力、黏模、表(biao)面凹陷、內縮孔及熱泡等(deng)缺陷。對生(sheng)(sheng)產(chan)(chan)(chan)(chan)周期也(ye)產(chan)(chan)(chan)(chan)生(sheng)(sheng)影響,如填充時(shi)間(jian)、冷(leng)卻時(shi)間(jian)及噴涂(tu)時(shi)間(jian)都產(chan)(chan)(chan)(chan)生(sheng)(sheng)不穩(wen)定的(de)(de)變數。模具(ju)的(de)(de)壽命也(ye)會(hui)因受到過冷(leng)過熱的(de)(de)沖擊而導致(zhi)昂貴的(de)(de)鋼材(cai)產(chan)(chan)(chan)(chan)生(sheng)(sheng)熱裂,加速其(qi)老(lao)化。
在現代化(hua)的工廠中,因(yin)應市(shi)場的競爭,節省人力(li),提(ti)(ti)高品質,降低(di)成本的經營策略是(shi)刻不容(rong)緩的,模溫機(ji)的使用,可使模具預熱(re)時間減少,成品表面質量提(ti)(ti)升及可完全自動化(hua)生(sheng)產(chan)(chan)。提(ti)(ti)高模具壽命是(shi)提(ti)(ti)高生(sheng)產(chan)(chan)力(li)的必(bi)要手段。
溫(wen)(wen)(wen)度控(kong)(kong)(kong)制機(ji)(ji)在(zai)其(qi)他行(xing)業的運用則是(shi)設(she)備(bei)構成的必然條(tiao)件(jian),叫(jiao)法也不同。在(zai)PVC片材輥輪控(kong)(kong)(kong)溫(wen)(wen)(wen)中(zhong)叫(jiao)油加熱器,在(zai)擠出機(ji)(ji)設(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)(wen)控(kong)(kong)(kong)裝置,在(zai)橡膠密煉(lian)機(ji)(ji)設(she)備(bei)中(zhong)叫(jiao)溫(wen)(wen)(wen)度控(kong)(kong)(kong)制系統或叫(jiao)溫(wen)(wen)(wen)控(kong)(kong)(kong)機(ji)(ji),這(zhe)些設(she)備(bei)中(zhong)基本上是(shi)一(yi)個先快速升(sheng)溫(wen)(wen)(wen),然后是(shi)保溫(wen)(wen)(wen)的過(guo)程(cheng)。而(er)在(zai)橡膠設(she)備(bei)中(zhong)升(sheng)溫(wen)(wen)(wen)后還需(xu)要長期執行(xing)一(yi)個降溫(wen)(wen)(wen)冷卻的過(guo)程(cheng)。?